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IgorLugansk [536]

2 years ago

3

What is the maximum mass in grams of aluminum chloride that could be obtained from 2.50 mol of barium chloride and excess alumin

um sulfate? This is the balanced equation for the reaction: Al2(SO4)3 + 3BaCl2--> 3BaSO4 + 2AlCl3. BaCl2 molar mass is 208.3 g/mol and AlCl3molar mass is 133.3 g/mol.
a. 521 g
b. 334 g
c. 222 g
d. 55.8

2 answers:

Vikki [24]2 years ago

5 0

Answer:

The maximum amount of aluminium chloride that could be obtained is 222 grams (option C)

Explanation:

Step 1: Data given

Number of moles barium chloride = 2.50 mol

Molar mass of BaCl2 = 208.3 g/mol

Molar mass of AlCl3 = 133.3 g/mol

Step 2: The balanced equation:

Al2(SO4)3 + 3BaCl2 → 3BaSO4 + 2AlCl3

Step 3: Calculate moles of AlCl3

For 1 mol aluminium sulfate we need 3 moles Barium chloride to produce 3 moles of barium sulfate and 2 moles of Aluminium chloride

For 2.50 mol of BaCl2 we have (2/3) * 2.50 = 1.667 moles of aluminium chloride

Step 4: Calculate mass of aluminium chloride

Mass AlCl3 = moles AlCl3 * molar mass AlCl3

Mass AlCl3 = 1.667 moles * 133.3 g/mol

Mass AlCl3 = 222 grams

The maximum amount of aluminium chloride that could be obtained is 222 grams (option C)

Inga [223]2 years ago

3 0

Answer:c. 222 g

Explanation:

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Answer:

The pH of 0.1 M BH⁺ClO₄⁻ solution is <u>5.44</u>

Explanation:

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$K_{a}. K_{b} = K_{w}$

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Initial: 0.1 M x x

Change: -x +x +x

Equilibrium: 0.1 - x x x

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$As, x$

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2 years ago

Sodium acetate spontaneously crystallizes out of a supersaturated solution upon standing or upon the addition of a seed crystal.

AlekseyPX

Answer:

Option (c) is correct.

Explanation:

According to 2nd law of thermodynamics, every spontaneous process is associated with increase in entropy ( $\Delta S>0$ ).

As sodium acetate crystallizes out spontaneously therefore it is associated with $\Delta S>0$ .

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2 years ago

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2 years ago

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Answer :

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The covalent compound are usually formed when two non-metals react.

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

All the polyatomic ions always form an ionic compound.

Polyatomic ions : It is a charged species that composed of two or more atoms and these charged species are bonded by the covalent bond.

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This compound is formed by the combination of potassium, $K^+$ which is a metal and $ClO_4^-$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

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This compound is formed by the combination of magnesium, $Mg^{2+}$ which is a metal and $C_2H_3O_2^{-}$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

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Hydrogen and sulfur, both are non-metals and they will form a covalent compound.

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2 years ago

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2 years ago